Re: easy and not time consuming ..
hmmmmmm
Only make things you have to re heat.
If you do want to make paki food then make some sort of pulao and keep it warm in the oven.
An easy potato salan, or vegie salan or chicken karhai ( very easy)
and make some salad/raita before hand and keep it in the fridge.
You wont be in the kitchen all day at all and you will be able to enjoy your guests :)